CN112628754B - Waste gasification melting treatment system and waste gasification melting treatment method - Google Patents
Waste gasification melting treatment system and waste gasification melting treatment method Download PDFInfo
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- CN112628754B CN112628754B CN202011487661.3A CN202011487661A CN112628754B CN 112628754 B CN112628754 B CN 112628754B CN 202011487661 A CN202011487661 A CN 202011487661A CN 112628754 B CN112628754 B CN 112628754B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/10—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a waste gasification melting treatment system and a waste gasification melting treatment method, wherein the waste gasification melting treatment system comprises a gasification furnace for burning and gasifying waste, a secondary combustion chamber for performing secondary combustion treatment on gas generated by the gasification furnace, a tertiary combustion chamber for re-combustion treatment on combustible gas discharged by the secondary combustion chamber, a melting furnace for performing high-temperature melting treatment on ash, a conveying flue, an ash discharging hopper and a heat conveying device; the conveying flue is connected between an exhaust port of the gasifier and an air inlet of the secondary combustion chamber; the ash discharging hopper is connected between the outlet of the secondary combustion chamber and the inlet of the tertiary combustion chamber; the input end of the heat conveying device is respectively connected with a slag discharging port of the gasification furnace and an ash discharging port of the ash discharging hopper; the output end of the heat conveying device is connected with the feeding port of the melting furnace. According to the invention, the gasification furnace, the secondary combustion chamber and the tertiary combustion chamber ensure that waste and gasification gas are combusted sufficiently, the generation of dioxin is reduced, ash is conveyed into the melting furnace by heat to realize vitrification, and the heat utilization rate is effectively improved.
Description
Technical Field
The invention relates to the technical field of waste treatment, in particular to a waste gasification melting treatment system and a waste gasification melting treatment method.
Background
Incineration is the best treatment means for harmless and reducing waste at present. The waste incineration treatment mainly comprises a grate type, a fluidized bed type, a rotary kiln type and the like, and a secondary combustion chamber is generally arranged behind the waste incineration treatment for burning out the flue gas, so that the emission of gas pollutants is reduced, but the waste has a large fluctuation of gas components due to various waste types, so that the problems of exceeding the standard of CO, dioxin and NOx contents and the like are solved, and the standard-reaching stable operation of the process cannot be realized.
After solid waste incineration, a large amount of ash slag (5-10%) and bottom slag (20-30%) are generated, the generation amount of various solid waste incineration residues in China in 2018 is about 1500 ten thousand tons, and the rate of the solid waste incineration residues is still increased at 10% per year. The ash is rich in a large amount of heavy metals and dioxins, and has huge ecological environment safety risks. For a long time, ash as an intermediate product cannot be effectively treated, and is mostly used for landfill at present, so that real harmless treatment cannot be achieved. Therefore, high-temperature melting of ash is the final means for making waste harmless.
There are two conventional incineration and fusion disposal modes: (1) the incineration and melting are arranged in a split mode; (2) and the incineration and the fusion are integrally arranged. The two modes have the defects that the ash after incineration is cooled firstly and then conveyed into a melting furnace for heating and melting, so that the quantity of equipment, the occupied area and the operation steps are increased, and the ash is cooled firstly and then heated, so that the energy loss is increased; the latter directly completes the fusion of ash slag at the bottom of the incinerator to realize the dual functions of incineration, gasification and fusion, but the internal working condition is complex, the temperature distribution of each area in the incinerator body can not be accurately controlled under the condition of lacking control means, and abnormal conditions such as cold bottom, coking, blocking and the like are easy to form, which is not beneficial to the long-term stable operation of the system.
Disclosure of Invention
The invention aims to solve the technical problem of providing a waste gasification melting treatment system and a waste gasification melting treatment method for realizing harmless treatment of waste and facilitating long-term stable operation.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a waste gasification melting treatment system, which comprises a gasification furnace for burning and gasifying waste, a secondary combustion chamber for secondary combustion treatment of gas generated by the gasification furnace, a tertiary combustion chamber for secondary combustion treatment of combustible gas discharged by the secondary combustion chamber, a melting furnace for high-temperature melting treatment of ash, a conveying flue, an ash discharging hopper and a heat conveying device;
the conveying flue is connected between the exhaust port of the gasifier and the air inlet of the secondary combustion chamber; the ash discharging hopper is connected between the outlet of the secondary combustion chamber and the inlet of the tertiary combustion chamber;
the input end of the heat conveying device is respectively connected with a slag discharging port of the gasification furnace and an ash discharging port of the ash discharging hopper; the output end of the heat conveying device is connected with the feeding port of the melting furnace, and ash residues discharged by the gasification furnace and the ash discharging hopper are sent into the melting furnace.
Preferably, the exhaust port of the gasifier is positioned at the top of the gasifier; the air inlet of the secondary combustion chamber is positioned at the top of the secondary combustion chamber.
Preferably, the outlet of the secondary combustion chamber is positioned at the bottom of the secondary combustion chamber; the inlet of the tricombustion chamber is positioned at the bottom of the tricombustion chamber.
Preferably, the ash discharge hopper is funnel-shaped or formed by a V-shaped ash discharge pipe.
Preferably, a plasma generator is arranged at the air inlet of the secondary combustion chamber.
Preferably, the heating mode of the melting furnace is one or more of resistance heating, induction heating, burner heating and plasma heating.
Preferably, the heat transport device includes a chain transport mechanism, a roller transport mechanism, or a transport pipe, and a heat source unit that supplies a heat source to the chain transport mechanism, the roller transport mechanism, or the transport pipe.
Preferably, the heat source unit includes an air supply passage connected between the smoke outlet of the triple combustion chamber and the heat transfer device, the air supply passage transferring high-temperature smoke discharged from the triple combustion chamber into the heat transfer device as a heat source; and/or the number of the groups of groups,
the heat source unit comprises a heater arranged on the chain conveying mechanism, the roller conveying mechanism or the conveying pipeline; the heater is an electric heater or a burner.
Preferably, the heat transfer device further comprises a high-temperature twin-roll crusher arranged at the front end of the feed inlet of the melting furnace.
Preferably, the waste gasification and melt processing system further comprises a liquid-tight storage tank for emergency pressure discharge; the liquid seal storage tank is communicated with the conveying flue.
The invention also provides a waste gasification melting treatment method, which adopts the waste gasification melting treatment system, and comprises the following steps:
s1, putting waste into a gasification furnace for incineration and gasification treatment;
s2, discharging ash residues generated after incineration and gasification into a heat conveying device, and enabling gas generated after the incineration and gasification to enter a secondary combustion chamber through a conveying flue for secondary combustion;
s3, secondary combustion is carried out on the gas in the secondary combustion chamber, wherein unburned combustible gas enters the tertiary combustion chamber through the ash discharge hopper for secondary combustion treatment; ash residues generated by the secondary combustion chamber and the tertiary combustion chamber are discharged into the ash discharging hopper and then discharged into the heat conveying device from the ash discharging hopper;
s4, the heat conveying device sends the ash discharged into the melting furnace to carry out high-temperature melting treatment;
and S5, discharging the melt formed after high-temperature melting out of the melting furnace, and cooling to form a glass body.
Preferably, in step S3, the high-temperature flue gas formed by the re-combustion treatment in the triple combustion chamber is sent to the heat conveying device through the air supply channel, and is used as a heat source to heat and preserve heat of the ash.
The invention has the beneficial effects that: the gasification furnace, the secondary combustion chamber and the tertiary combustion chamber ensure that waste and gasification gas are combusted sufficiently, reduce the generation of dioxin, enable ash slag to be conveyed into the melting furnace by heat so as to realize vitrification, and effectively improve the heat utilization rate.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a block diagram of a waste gasification and melt processing system according to an embodiment of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the waste gasification and melting treatment system according to an embodiment of the present invention includes a gasification furnace 10, a secondary combustion chamber 20, a tertiary combustion chamber 30, a melting furnace 40, a delivery flue 50, an ash hopper 60, and a heat delivery device 70.
The gasification furnace 10 has a feed port 11, a slag discharge port 12, and an exhaust port 13 as a place where waste is incinerated and gasified. Typically, the waste includes solid waste and liquid waste; the solid waste may be conveyed to the feed port 11 via a conveyor and the liquid waste may be injected into the gasifier 10 via a liquid lance. The slag discharge port 12 can realize high-temperature slag discharge, and the slag formed after incineration in the gasification furnace 10 is discharged. The exhaust port 13 is used to exhaust the gas (gasified gas) formed after incineration.
The feed port 11 is provided on the side of the gasification furnace 10, the exhaust port 13 is provided on the top of the gasification furnace 10, and the slag discharge port 12 is provided on the bottom of the gasification furnace 10.
Specifically, the gasification furnace 10 may take a form of a grate type, a fluidized bed type, a rotary kiln type, or the like.
The secondary combustion chamber 20 is used to perform secondary combustion treatment on the gas (gasification gas) generated in the gasification furnace 10, and serves as a place where the gasification gas is reformed and burned. The delivery flue 50 is connected between the exhaust port 13 of the gasification furnace 10 and the intake port 21 of the secondary combustion chamber 20, and delivers the gas generated in the gasification furnace 10 into the secondary combustion chamber 20.
Preferably, a plasma generator is provided at the gas inlet 21 of the secondary combustion chamber 20 to reform the organic polymer and the harmful substance in the gasification gas and sufficiently burn the gasification gas by supplementing sufficient combustion-supporting gas. The outlet of the secondary combustion chamber 20 is located at the bottom of the secondary combustion chamber 20, and ash formed after combustion of the gas therein is discharged from the outlet at the bottom.
In this embodiment, the air inlet 21 of the secondary combustion chamber 20 is located at the top of the secondary combustion chamber 20, and the combined air outlet 13 is disposed at the top of the gasifier 10, and the delivery flue 50 is connected between the gasifier 10 and the top of the secondary combustion chamber 20.
An ash hopper 60 is connected between the outlet of the secondary chamber 20 and the inlet of the tertiary chamber 30. Wherein the inlet of the tricombustion chamber 30 is located at its bottom, whereby the hopper 60 is connected between the second combustion chamber 20 and the bottom of the tricombustion chamber 30. Ash produced in the secondary combustion chamber 20 may fall by gravity into the ash hopper 60. The unburned combustible gas in the secondary combustion chamber 20 enters the tertiary combustion chamber 30 through the ash discharge hopper 60 to be burned again, the combustible gas is burnt out, and ash residues formed after combustion fall into the ash discharge hopper 60.
It will be appreciated that the sides of the secondary and tertiary chambers 20 and 30 are provided with respective tuyeres as inlets for the combustion gases. The air port can be provided with a fan to provide driving force to introduce combustion-supporting gas. Excess combustion-supporting gas is supplemented to the three-combustion chamber 30, so that the rest combustible gas is further burnt out, the residence time is prolonged, the outlet temperature is ensured to be above 1100 ℃, and the treated high-temperature flue gas is discharged. The smoke outlet 31 of the triple combustion chamber 30 may be provided at the top or upper end thereof, may be connected to a smoke treatment system or the like, and supplies the burned smoke to the smoke treatment system.
Alternatively, the hopper 60 is funnel-shaped or formed with a V-shaped ash discharge duct to facilitate retention of ash. The ash discharge opening 61 of the ash discharge hopper 60 is located at the bottom thereof, and ash falling into the ash discharge hopper 60 is discharged from the ash discharge opening 61.
The melting furnace 40 is used for high temperature melting of ash. The heat transfer device 70 is connected between the gasification furnace 10, the ash hopper 60 and the melting furnace 40, and transfers the ash discharged from the gasification furnace 10 and the ash discharged from the ash hopper 60 into the melting furnace 40 to form a glass body by high-temperature melting treatment.
The melting furnace 40 is heated by one or more of resistive heating, inductive heating, burner heating, and plasma heating. The melting furnace 40 may be an induction furnace, a resistance furnace, a plasma melting furnace, or the like, depending on the heating mode.
Specifically, the input end of the heat transfer device 70 is connected to the slag discharging port 12 of the gasification furnace 10 and the ash discharging port 61 of the ash discharging hopper 60, respectively, to receive ash from the gasification furnace 10 and the ash discharging hopper 60. The output end of the heat transfer device 70 is connected to the feed port 41 of the melting furnace 40, and the ash discharged from the gasification furnace 10 and the ash discharge hopper 60 is fed into the melting furnace 40. The heat conveying device 70 heats and keeps the temperature of the ash while conveying the ash, and avoids the viscosity and blockage of the ash when cooling.
The heat transport device 70 may include a chain transport mechanism, a roller transport mechanism, or a transport pipe, and further include a heat source unit that provides a heat source for the chain transport mechanism, the roller transport mechanism, or the transport pipe. The inside of the chain conveying mechanism, the roller conveying mechanism or the conveying pipeline can be laid with refractory materials to play a role in heat preservation.
Preferably, in order to achieve heat recovery and utilization, the heat source unit includes an air supply passage (not shown) connected between the smoke outlet 31 of the triple combustion chamber 30 and the heat transfer device 70, and the air supply passage transfers the high-temperature smoke (all or part) discharged from the triple combustion chamber 30 into the heat transfer device 70 as a heat source. The heat source unit may further include a heater provided on the chain conveying mechanism, the roller conveying mechanism, or the conveying pipe as an auxiliary heat source, as needed; the heater is an electric heater or a burner. The temperature control system is connected with the heat conveying device 70, so that the temperature of the heat conveying device 70 is controlled, the high-temperature state of the conveying process is effectively maintained, and the long-term stable operation of the hot feeding of the melting furnace 40 is realized.
Of course, the heat transfer device 70 may also employ an electric heater as the primary heat source.
Further, the heat transfer device 70 may further include a high-temperature twin-roll crusher (not shown) provided at the front end of the feed port 41 of the melting furnace 40, to crush the transferred ash, so that the ash forms smaller particles and then enters the melting furnace 40, thereby improving the melting efficiency.
The waste gasification and melt processing system of the present invention further includes a liquid seal tank 809 (also referred to as a pressure release tank) for emergency pressure release; the liquid seal reservoir 80 communicates with the delivery stack 50. When the pressure in the gasification furnace 10 and the secondary combustion chamber 20 is too high, the liquid seal storage tank 80 is opened to release pressure, so that the safe operation of the whole system is ensured.
The waste gasification and melting treatment method of the present invention is implemented by the above-described waste gasification and melting treatment system. Referring to fig. 1, the waste gasification and melting treatment method includes the steps of:
s1, putting the waste into the gasification furnace 10 for incineration and gasification treatment.
For solid waste, it is conveyed to the feed port 11 via a conveyor; for liquid waste, it is injected into the gasifier 10 through a liquid lance.
S2, ash residues generated after incineration and gasification are discharged into the heat conveying device 70, and gas (gasified gas) generated after incineration and gasification enters the secondary combustion chamber 20 through the conveying flue 50 for secondary combustion.
S3, secondary combustion is carried out on the gas in the secondary combustion chamber 20, wherein unburned combustible gas enters the tertiary combustion chamber 30 through the ash discharge hopper 60 for secondary combustion treatment.
Ash produced in the secondary combustion chamber 20 and the tertiary combustion chamber 30 is discharged into an ash discharge hopper 60, and is discharged from the ash discharge hopper 60 into a heat transfer device 70.
Preferably, the high-temperature flue gas formed by the reburning treatment in the triple combustion chamber 30 is sent to the heat conveying device 70 through the air supply channel and used as a heat source for heating and preserving the ash.
S4, the heat conveying device 70 sends the ash discharged into the melting furnace 40 to carry out high-temperature melting treatment.
And S5, discharging the melt formed after high-temperature melting out of the melting furnace 40, and cooling to form a glass body.
The leaching toxicity of the vitreous body is far lower than the national standard, and the complete harmless treatment of ash slag is realized.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (12)
1. The waste gasification melting treatment system is characterized by comprising a gasification furnace for carrying out incineration gasification treatment on waste, a secondary combustion chamber for carrying out secondary combustion treatment on gas generated by the gasification furnace, a tertiary combustion chamber for carrying out secondary combustion treatment on combustible gas discharged by the secondary combustion chamber, a melting furnace for carrying out high-temperature melting treatment on ash, and further comprising a conveying flue, an ash discharging hopper and a heat conveying device;
the conveying flue is connected between the exhaust port of the gasifier and the air inlet of the secondary combustion chamber; the ash discharge hopper is connected between the outlet of the secondary combustion chamber and the inlet of the tertiary combustion chamber, and unburned combustible gas in the secondary combustion chamber enters the tertiary combustion chamber through the ash discharge hopper;
the input end of the heat conveying device is respectively connected with a slag discharging port of the gasification furnace and an ash discharging port of the ash discharging hopper; the output end of the heat conveying device is connected with the feeding port of the melting furnace, and ash residues discharged by the gasification furnace and the ash discharging hopper are sent into the melting furnace;
the heat source unit of the heat conveying device comprises an air supply channel, wherein the air supply channel is connected between the smoke outlet of the three-combustion chamber and the heat conveying device, and the high-temperature smoke exhausted by the three-combustion chamber is partially or completely conveyed to the heat conveying device to serve as a heat source.
2. The waste gasification and melt processing system of claim 1, wherein the gasifier exhaust port is located at the top of the gasifier; the air inlet of the secondary combustion chamber is positioned at the top of the secondary combustion chamber.
3. The waste gasification and melt processing system of claim 1, wherein an outlet of the secondary combustion chamber is located at a bottom of the secondary combustion chamber; the inlet of the tricombustion chamber is positioned at the bottom of the tricombustion chamber.
4. The waste gasification melt processing system of claim 1, wherein the ash hopper is funnel-shaped or formed from a V-shaped ash discharge conduit.
5. The waste gasification and melt processing system of claim 1, wherein a plasma generator is provided at an air inlet of the secondary combustion chamber.
6. The waste gasification and melt processing system of claim 1, wherein the melting furnace is heated by one or more of resistive heating, inductive heating, burner heating, and plasma heating.
7. The waste gasification and melt processing system of any one of claims 1 to 6, wherein the heat transfer device comprises a chain transfer mechanism, a roller transfer mechanism, or a transfer pipe, and a heat source unit that provides a heat source for the chain transfer mechanism, the roller transfer mechanism, or the transfer pipe.
8. The waste gasification and melt processing system of claim 7, wherein the heat source unit comprises an air feed passage connected between a smoke outlet of the tricombustion chamber and the heat transfer device, the air feed passage transferring high-temperature flue gas discharged from the tricombustion chamber into the heat transfer device as a heat source; and/or the number of the groups of groups,
the heat source unit comprises a heater arranged on the chain conveying mechanism, the roller conveying mechanism or the conveying pipeline; the heater is an electric heater or a burner.
9. The waste gasification and melt processing system of claim 8, wherein the heat transfer device further comprises a high temperature twin roll crusher disposed at a forward end of a feed port of the melting furnace.
10. The waste gasification melt processing system of any one of claims 1-6, further comprising a liquid-tight tank for emergency venting; the liquid seal storage tank is communicated with the conveying flue.
11. A waste gasification melt processing method, characterized by employing the waste gasification melt processing system according to any one of claims 1 to 10, comprising the steps of:
s1, putting waste into a gasification furnace for incineration and gasification treatment;
s2, discharging ash residues generated after incineration and gasification into a heat conveying device, and enabling gas generated after the incineration and gasification to enter a secondary combustion chamber through a conveying flue for secondary combustion;
s3, secondary combustion is carried out on the gas in the secondary combustion chamber, wherein unburned combustible gas enters the tertiary combustion chamber through the ash discharge hopper for secondary combustion treatment; ash residues generated by the secondary combustion chamber and the tertiary combustion chamber are discharged into the ash discharging hopper and then discharged into the heat conveying device from the ash discharging hopper;
s4, the heat conveying device sends the ash discharged into the melting furnace to carry out high-temperature melting treatment;
and S5, discharging the melt formed after high-temperature melting out of the melting furnace, and cooling to form a glass body.
12. The method according to claim 11, wherein in step S3, the high-temperature flue gas generated by the re-combustion in the triple combustion chamber is sent to the heat transfer device through the air supply passage, and the ash is heated and kept warm as a heat source.
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| CN202011487661.3A CN112628754B (en) | 2020-12-16 | 2020-12-16 | Waste gasification melting treatment system and waste gasification melting treatment method |
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| CN202011487661.3A CN112628754B (en) | 2020-12-16 | 2020-12-16 | Waste gasification melting treatment system and waste gasification melting treatment method |
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| CN207962659U (en) * | 2018-02-11 | 2018-10-12 | 李文智 | The processing equipment of waste combustion bottom ash and flying dust |
| AT520305B1 (en) * | 2018-03-09 | 2019-03-15 | Andritz Ag Maschf | INCINERATOR |
| CN109237490B (en) * | 2018-11-08 | 2023-10-31 | 航天神禾(北京)环保有限公司 | Gasification plasma waste treatment system |
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